The arteries of the heart (the coronary arteries) can become narrowed and blocked due to buildup of plaque on their inner walls. This narrowing reduces the flow of blood through the artery and over time can result in coronary artery disease and heart attack. Angioplasty may improve symptoms of coronary artery disease, such as angina or shortness of breath.

Angioplasty and stent placement procedures are used to open one or more clogged or narrowed heart arteries and improve blood flow to the heart muscle. Angioplasty involves inserting and expanding a small balloon where your artery is clogged to help widen the artery. Once the artery is opened, a small stent is used to support the artery.

The goal of angioplasty is to restore adequate blood flow through the affected part of the body. The procedure may be suggested by a physician to relieve angina, stop a heart attack, or improve heart function.